Looking for Rally Dash Tachometer for my 1970 Dart Swinger

Its for 68+ I hadnt thought of selling it tbh, but I saw this thread. I also have learned that sometimes is best to trade hard to find stuff for other hard to find stuff. $$ is nice, but no guarantees you will find the parts your looking for.
For what year? and how many ounces of Gold. They are getting real hard to find especially 67.